/*
 * Copyright 2000-2010 JetBrains s.r.o.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.intellij.util;

/**
 * @param <T> Input value type.
 * @see com.intellij.util.CommonProcessors
 */
public interface Processor<T> {
    Processor TRUE = new Processor() {
        @Override
        public boolean process(Object o) {
            return true;
        }
    };
    Processor FALSE = new Processor() {
        @Override
        public boolean process(Object o) {
            return false;
        }
    };

    /**
     * @param t consequently takes value of each element of the set this processor is passed to for processing.
     * @return {@code true} to continue processing or {@code false} to stop.
     */
    boolean process(T t);
}